<template>
  <el-container>
    <el-header>
      <div>
        <img src="../assets/heima.png" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button @click="logout" type="info">退出</el-button>
    </el-header>
    <el-container>
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleCollapse()">|||</div>
        <el-menu background-color="#333744" text-color="#fff" active-text-color="#4090CB" unique-opened 
                   :collapse="isCollapse" :collapse-transition="false" router
                    :default-active="activePath">
          <el-submenu :index="item.id + ''" v-for="item in meaulist" :key="item.id">
            <template slot="title">
              <i :class="iconObj[item.id]"></i>
              <span>{{ item.authName }}</span>
            </template>
            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children"
            :key="subItem.id"
            @click="saveNarState('/'+subItem.path)">
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{ subItem.authName }}</span>
              </template></el-menu-item
            >
          </el-submenu>
        </el-menu></el-aside
      >
      <el-main>
          <router-view></router-view>
          </el-main>
    </el-container>
  </el-container>
</template>
<script>
export default {
  data() {
    return {
      meaulist: [],
      iconObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao',
      },
      isCollapse: false,
      activePath:''
    }
  },
  created() {
    this.getMeanList()
      this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('./Login.vue')
    },
    async getMeanList() {
      const { data: res } = await this.$http.get('menus')
      //   console.log(res)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.meaulist = res.data
      console.log(this.meaulist)
    },
    toggleCollapse() {
      this.isCollapse = !this.isCollapse
    },
    saveNarState(activePath){
        // window.sessionStorage.setItem('activePath',activePath)
        this.activePath=activePath
    }
  },
}
</script>
<style lang="less" scoped>
.el-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      padding-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu {
    border: 0;
  }
  .toggle-button {
    background-color: #4a5064;
    height: 24px;
    line-height: 24px;
    text-align: center;
    font-size: 10px;
    letter-spacing: 0.2em;
    color: #fff;
    cursor: pointer;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont {
  margin-right: 10px;
}
</style> 